Amazon RDS vs MongoDB Atlas
On the evidence we track, MongoDB Atlas leads this comparison with a composite score of 77/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for managed databases. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Amazon RDS
AWS RDS is a fully managed database service that handles provisioning, configuration, backup, and patching automatically. It supports multiple database engines and scales on-demand to match application usage, allowing databases to be created and managed in minutes.
MongoDB Atlas
LeaderMongoDB Atlas is a managed cloud database platform offering a JSON-like document model with built-in capabilities for searching, analytics, and data federation. It supports automatic scaling, enterprise security, and deployment across AWS, Azure, and Google Cloud, with both free and pay-as-you-go options.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Amazon RDS
Free tier with $100 AWS credits for 12 months. Hybrid pricing: serverless billed per ACU/second, reserved instances with annual commitment, on-demand per hour. Pricing varies by region and instance type.
- AWS Free TierFree
- Aurora PostgreSQL serverless instances
- Database automation (provisioning, backup, patching)
- Aurora Serverless (On-Demand)Billed per Aurora Capacity Unit (ACU) per second based on usage
- Automatic scaling to hundreds of thousands of transactions per second
- Multi-AZ deployments
- Read replicas
- Global Database support
- All Aurora features
- Aurora Reserved InstancesAnnual commitment with amortized hourly pricing
- 1-year commitment term
- Designated to specific AWS Region and instance type
- Billed for every hour of term regardless of running status
MongoDB Atlas
LeaderFree tier available. Flex and dedicated pricing starting at $8/month with hourly or monthly billing.
- Free (M0)Free
- 512 MB storage
- 32 MB sort memory
- 100 ops/sec
- replica set support
- Flex$8–$30/month depending on usage
- Dedicated (M2)$25/month
- Dedicated (Shared vCPU)Starting at $56.94/month
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
- AWS CloudFormation
Amazon RDS
- Amazon Aurora
- Amazon EC2
- Amazon EBS
- AWS CloudWatch
- AWS Config
- Amazon S3
- AWS IAM
- AWS Outposts
- AWS Graviton3
- Amazon QuickSight
- Amazon Redshift
- AWS Artifact
- Amazon GuardDuty
- AWS Audit Manager
MongoDB Atlas
Leader- AWS S3
- Terraform
- Kubernetes
- Docker
- MongoDB Shell
- Atlas CLI
- Node.js MongoDB Driver
- Python MongoDB Driver
- C# EF Core Provider
- Azure
- Google Cloud
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.